Pause physics to move camera, then resume
You can vary the speed of the physics engine via the Rigid Body World settings in the Scene properties.



Leaving the speed at 1.000 runs the simulation at 'normal time' while values closer to 0 will slow down the action.

Varying the time in this way can cause some anomalies - particularly if you change it at the point of collisions or interactions between objects. This appears to be due to issues with how the calculations are performed behind the scenes. For this reason, avoid changing the Speed right down to zero - eg, 0.002 (1/500th speed) should give reasonable results - and you will likely also need to greatly increase the Steps Per Second (I increased from 60 to 10000 - but this will take longer to calculate!) to improve the accuracy of the simulation and it might also be worthwhile toggling Split Impulse if you're getting unexpected results.

This can produce the following result :



Blend file attached.